Reserve-supply tank.



A, W. EL HELBERG.,

RESERVE SUPPLY TANK.

AYPLIUATION HLBD JUNE 9, 1 911 91 E @yvm l Patented Sept. 8. 19Mxme/Moz;

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AUGUST W. H. HELIBERG, OF GARDNERVILLE, NEVADA.

RESERVE-SUPPLY TANK.

To all whom t may concern:

Be it known that I, AUGUST W. H. HEL- BERG, citizen of the UnitedStates, residing at Gardner-ville, in the county of Douglas and State ofNevada, have invented new and useful Improvements in Reserve-SupplyTanks, of which the following, is a specification.

The primary object of the invention is" the provision of an emergencydevice for liquid supply tanks so that a portion of the liquid may bereserved for emergency use and drawn from in the event ofthe regularsupplys becoming exhausted.

The above and other objects will appear and be better understood fromthe following description taken in connection with the accompanyingdrawin `s in which;

Figure 1 is a detail ve tical longitudinal section taken through aliquid supply tank and showing one embodiment of my invention invertical section and applied thereto; Fig. 2 is a detail longitudinalsectional view of the device with the emergency port open; Fig. 8 is alongitudinat sectional view of a modified form of device.

The device is intended for use with any liquid reservoir wherein it isdesired to maintain a reserve or emergency supply, For purpose ofillustration, however, l have shown one embodiment applied to the fuelsupply tank for an i-nternalcombustion niotor. Thisy fuel supply `tank5,.has an outlet pipe 6 leading to the carbureter (not shown).

As shown', in Figs. 1 and 2, the emergency device incli-fdes two casingsa and b, the latter of which also serves as a valve for the casing a.-The casing or nipple a has-a lower end portion 7 extending through thebottom of the tank 5 and connected to the pipe G in any suitable mannersuch as that shown. The said casing a has a flange 8 which is secured inany suitable manner to the bottom of the tank 5. A valve seat 9 isformed in the casing 7 and an inlet port 10 extends through the wall ofthe casing a at a point above the fiange 8. The lower end portion of thecasing or outer hollow valve stem b is .adjustably secured as by screwthreads 11 in the upper or inner end portion of the casing a. Tl saidlower end portion terminates in a slistantially cone-shaped end 412adapted to be snugly received by the seat 9, and when said end 12 isseated on 9,

direct communication between port 10 and passage 28 is thereby out off.The passage Specification of Letters Batent.

28, as shown, leads through the lower end portion 7 of casing a, intopipe 6. When 12 is seated on 9, alined passages 27 and 28 register toform a continuous passage. The hpper end portion of the casing b extendsthrough a guide arranged in an opening in ratentedsept. s, i914.

Application filed June 9, 1911. Serial No. 632,172.

the upper side of the tank 5. The openings in the top and bottomof thetank may be substantially vertically alined, as shown. The guideincludes a flanged bushing 13, the heorizo'ntal portion 13a of whichbears on the upper side of the tank 5, the outer surface of the bushingbeing screw-threaded and engaging with an interiorly threaded nut 14.Suitable packing 15 is airanged between the iiange 16 of the nut 14 andyup;

per end of the bushing 13. With this con-` struction it will be seenthat the liquid will be prevented from escaping between the bushing andcasing b while the latter may be moved vertically.

An inner valve stemv17 having a needle plug at its `lower end isarranged within the outer hollow valve stem or casing b and islongitudinally movable therein, its lower end coperating with'a seat 18and being adapted when bearing ,on the seat to close the passage 27 ofthe casing bl which communicates with the tank through an inlet port 19extending through the casing wall and` located above the seat 18 andfirstnamed inlet port 10. The upper end of the .casing b has threaded orotherwise secured thereto a counter-bored nut 20, the inner surface ofthe counter-bore being screwthreaded and engaging with the threads on aclamping nut -21. The clamping nut 21 is formed on its lower face witha' depre `ion 22 and surroundingV the upper end portion of the needlevalve 17 is suitable packing material 23 which is compressed by the nut21 so as to insure a tight iit and prevent the liquids escaping aroundthe needle valve 17 The needle valve 17 has a screw-threaded portion 24which engages with a screwthreaded portion 25 on the inner surface ofthe casing b. vThe needle valve is turned by means of a head 26. Byturning' the nut 20 in one direction the casing b is lowered until thelower end thereof bears on the seat 9 and cuts off communication betweenport 10 and passage 28.` The needle valve may be likewise turned bymeans of the head 2G unl

